Adapting Raman Spectra from Laboratory Spectrometers to Portable Detection Libraries

作者：Weatherall James C^*; Barber Jeffrey; Brauer Carolyn S; Johnson Timothy J; Su Yin Fong; Ball Christopher D; Smith Barry T; Cox Rick; Steinke Robert; McDaniel Patricia; Wasserzug Louis

来源：Applied Spectroscopy, 2013, 67(2): 149-157.

DOI：10.1366/12-06759

• Raman spectroscopy
• Raman libraries
• Portable
• Spectral Database
• Wavenumber calibration
• Intensity correction
• Fluorescence
• Explosives Detection

Raman spectral data collected with high-resolution laboratory spectrometers are processed into a format suitable for importing as a user library on a 1064 nm DeltaNu first generation, field-deployable spectrometer prototype. The two laboratory systems used are a 1064 nm Bruker Fourier transform (FT)-Raman spectrometer and a 785 nm Kaiser dispersive spectrometer. The steps taken to adapt for device-dependent spectral resolution, wavenumber shifts between instruments, and relative intensity response are described. Effects due to the differing excitation laser wavelengths were found to be minimal, indicating at least for the near-infrared (NIR) that data can be ported between different systems, so long as certain measures are taken with regard to the reference and field spectra.

• 出版日期2013-2